1420577 has 2 divisors, whose sum is σ = 1420578. Its totient is φ = 1420576.

The previous prime is 1420561. The next prime is 1420583. The reversal of 1420577 is 7750241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1079521 + 341056 = 1039^2 + 584^2 .

It is a cyclic number.

It is not a de Polignac number, because 1420577 - 2⁴ = 1420561 is a prime.

It is a Chen prime.

It is a zygodrome in base 3.

It is not a weakly prime, because it can be changed into another prime (1420277) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710288 + 710289.

It is an arithmetic number, because the mean of its divisors is an integer number (710289).

2^1420577 is an apocalyptic number.

It is an amenable number.

1420577 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420577 is an equidigital number, since it uses as much as digits as its factorization.

1420577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 1420577 is about 1191.8796080142. The cubic root of 1420577 is about 112.4143084076.

The spelling of 1420577 in words is "one million, four hundred twenty thousand, five hundred seventy-seven".